The following things have happened since Duke Nukem Forever was announced…

Movies that were filmed, released in theatres, and have made it to DVD:

• All three Star Wars prequels.
• The entire Lord of the Rings trilogy, with extended editions.
• Every Pixar movie aside from Toy Story.
• Three (possibly four) James Bond films.
• Every movie, animation, and video game from The Matrix series.

…

Things that have taken less time than Duke Nukem Forever’s Development:

Wars:

• The American War for Independence
• The United States Civil War
• World War I
• World War II and the entire Manhattan Project.
• The United State’s involvement in the Vietnam War.

The List – http://duke.a-13.net/